What this article does and does not claim
The title asks what is working. The honest answer for any single city is that it is hard to know. This article does not claim proven results for Camden, and it gives no local statistics. Instead, it summarizes what criminology research generally says about strategies cities commonly use, so that readers can better judge claims they come across. The focus here is the general evidence base.
Research findings are averages from particular places and times. A strategy that worked in one setting may not work the same way in another, and results can depend on how carefully it was carried out.
Why proving a result is hard
Crime goes up and down for many reasons at once: the economy, demographics, housing, drug markets, weather, reporting practices and policing. When a city introduces a new approach and crime then falls, it is tempting to credit the approach. But crime also fell in many other places over certain periods, and a decline may have happened anyway. Researchers try to address this by comparing treated areas to similar untreated ones, ideally with random assignment, and by looking at results over time. Even then, findings come with uncertainty.
Another complication is that crime is measured through reports. A change in reported crime might reflect a change in reporting rather than in events.
Strategies with relatively strong research support
Reviews of the research commonly identify a few approaches with comparatively consistent findings. None guarantees results.
Focusing on hot spots. Crime tends to cluster in a small number of places, such as particular blocks or intersections. Studies of directing police attention or other resources to those places have often found reductions in crime there, with limited evidence of simply pushing it to the next block. Results depend on the tactics used, and how residents experience intensive attention is a separate question.
Focused deterrence. This approach identifies a small number of people or groups responsible for a large share of serious violence, communicates directly about consequences and offers support services. Evaluations in several cities have reported reductions in group-related violence, though results have varied and sustaining the programs has proven difficult.
Problem-oriented policing. Instead of responding to incidents one at a time, officers and partners analyze recurring problems and address underlying causes. Reviews generally find modest positive effects.
Changing the physical environment. Some studies have examined cleaning and greening vacant lots, with a randomized study in nearby Philadelphia reporting reductions in certain crimes around treated lots. Research on lighting is more mixed but includes experiments that reported fewer outdoor night-time offenses in treated areas. Related efforts to manage vacant lots and improve public space follow this reasoning, and design changes tied to green infrastructure and complete streets may offer additional benefits unrelated to crime.
Cognitive behavioral approaches. Programs that help young people and young adults slow down and rethink automatic reactions have shown promising results in several studies. Evidence for how well they scale is still developing.
Summer jobs and job training. Some evaluations of youth summer employment have found reductions in violence-related outcomes among participants, while others have found smaller or no effects. Evidence on job training more generally is mixed, with results depending on the labor market.
Strategies with weaker or mixed evidence
- Cameras. Studies suggest they can help with certain property crimes and in specific settings such as parking facilities, but evidence of broad effects on violence is weaker.
- Aggressive enforcement of minor offenses. Evidence that broad stop-and-search tactics or zero-tolerance enforcement lower serious crime is limited, and these tactics can damage trust. Reviews generally favor focused approaches over broad ones.
- Longer sentences. Research generally finds that the certainty of being caught matters more for deterrence than the severity of the penalty.
- One-off events and awareness campaigns. Programs with limited contact or follow-up usually show little lasting effect.
The role of trust and legitimacy
A recurring finding in policing research is that people are more likely to report crimes, share information and cooperate when they believe the police treat them fairly. Procedural fairness, meaning explaining decisions, treating people with respect and giving them a voice, is associated with greater cooperation. This is one reason debates about how a department operates matter alongside debates about how many officers it has.
Broader conditions
Many researchers also point to long-term factors, such as concentrated poverty, housing instability, educational opportunity and exposure to violence. These are slower to change and harder to credit to any one program, which is why discussions of crime in cities with a history of disinvestment often connect to wider economic challenges. Efforts in those areas may reduce crime over time, but the evidence for specific programs varies.
How to read claims
When a city, agency or news report says a strategy is working, helpful questions include:
- What was measured, over what period, and compared with what?
- Did similar places without the strategy see similar changes?
- Were figures based on official sources and consistent definitions?
- Did the effect last, or fade after the initial period?
- Who bears the costs, and how do residents view the approach?
Applying careful source evaluation to claims about any city, including Camden, is more reliable than accepting a single statistic or a slogan. Readers can consult FBI and New Jersey State Police reports for official figures, and published research reviews for evidence on specific strategies. The honest summary is that some approaches have reasonable support, many are uncertain, and no strategy offers a guaranteed outcome.